def index():
global thread
if thread is None:
thread = Thread(target=PresidentialCandidate.subscribe)
thread.start()
ctx = {
"namespace": PresidentialCandidate.namespace,
"msg_name": PresidentialCandidate.msg_name,
"map_data": json.dumps(PresidentialCandidate.current_map_data()),
"candidates": CANDIDATES,
}
return render_template("index.html", **ctx)
